Update validator select balancer (#119)

* Update validator select balancer

Author: cyc60

oracle/networks.py

@@ -1,6 +1,7 @@
 from datetime import timedelta
 
 from decouple import Csv, config
+from ens.constants import EMPTY_ADDR_HEX
 from eth_typing import HexStr
 from web3 import Web3
 
@@ -68,6 +69,9 @@
             "0x0100000000000000000000002296e122c1a20fca3cac3371357bdad3be0df079"
         ),
         ORACLE_PRIVATE_KEY=config("ORACLE_PRIVATE_KEY", default=""),
+        ORACLE_STAKEWISE_OPERATOR=Web3.toChecksumAddress(
+            "0x5fc60576b92c5ce5c341c43e3b2866eb9e0cddd1"
+        ),
         AWS_BUCKET_NAME=config("AWS_BUCKET_NAME", default="oracle-votes-mainnet"),
         AWS_REGION=config("AWS_REGION", default="eu-central-1"),
         AWS_ACCESS_KEY_ID=config("AWS_ACCESS_KEY_ID", default=""),
@@ -138,6 +142,7 @@
             "0x0100000000000000000000005c631621b897f467dd6a91855a0bc97d77b78dc0"
         ),
         ORACLE_PRIVATE_KEY=config("ORACLE_PRIVATE_KEY", default=""),
+        ORACLE_STAKEWISE_OPERATOR=EMPTY_ADDR_HEX,
         AWS_BUCKET_NAME=config(
             "AWS_BUCKET_NAME",
             default="oracle-votes-harbour-mainnet",
@@ -211,6 +216,7 @@
             "0x010000000000000000000000040f15c6b5bfc5f324ecab5864c38d4e1eef4218"
         ),
         ORACLE_PRIVATE_KEY=config("ORACLE_PRIVATE_KEY", default=""),
+        ORACLE_STAKEWISE_OPERATOR=EMPTY_ADDR_HEX,
         AWS_BUCKET_NAME=config("AWS_BUCKET_NAME", default="oracle-votes-goerli"),
         AWS_REGION=config("AWS_REGION", default="eu-central-1"),
         AWS_ACCESS_KEY_ID=config("AWS_ACCESS_KEY_ID", default=""),
@@ -281,6 +287,7 @@
             "0x0100000000000000000000006dfc9682e3c3263758ad96e2b2ba9822167f81ee"
         ),
         ORACLE_PRIVATE_KEY=config("ORACLE_PRIVATE_KEY", default=""),
+        ORACLE_STAKEWISE_OPERATOR=EMPTY_ADDR_HEX,
         AWS_BUCKET_NAME=config(
             "AWS_BUCKET_NAME",
             default="oracle-votes-perm-goerli",
@@ -354,6 +361,7 @@
             "0x010000000000000000000000fc9b67b6034f6b306ea9bd8ec1baf3efa2490394"
         ),
         ORACLE_PRIVATE_KEY=config("ORACLE_PRIVATE_KEY", default=""),
+        ORACLE_STAKEWISE_OPERATOR=EMPTY_ADDR_HEX,
         AWS_BUCKET_NAME=config("AWS_BUCKET_NAME", default="oracle-votes-gnosis"),
         AWS_REGION=config("AWS_REGION", default="eu-north-1"),
         AWS_ACCESS_KEY_ID=config("AWS_ACCESS_KEY_ID", default=""),

oracle/oracle/common/graphql_queries.py

@@ -400,7 +400,7 @@
       operators(
         block: { number: $block_number }
         where: { committed: true }
-        orderBy: validatorsCount
+        orderBy: id
         orderDirection: asc
       ) {
         id
@@ -411,6 +411,24 @@
 """
 )
 
+LAST_VALIDATORS_QUERY = gql(
+    """
+    query getValidators($block_number: Int) {
+      validators(
+        block: { number: $block_number }
+        orderBy: createdAtBlock
+        orderDirection: desc
+        first: 1
+      ) {
+        operator {
+            id
+        }
+      }
+    }
+"""
+)
+
+
 PARTNERS_QUERY = gql(
     """
     query getPartners($block_number: Int) {

oracle/oracle/validators/eth1.py

@@ -1,5 +1,6 @@
 from typing import Dict, Set, Union
 
+from ens.constants import EMPTY_ADDR_HEX
 from eth_typing import HexStr
 from web3 import Web3
 from web3.types import BlockNumber
@@ -9,12 +10,13 @@
     execute_sw_gql_query,
 )
 from oracle.oracle.common.graphql_queries import (
+    LAST_VALIDATORS_QUERY,
     OPERATORS_QUERY,
     VALIDATOR_REGISTRATIONS_LATEST_INDEX_QUERY,
     VALIDATOR_REGISTRATIONS_QUERY,
 )
 from oracle.oracle.common.ipfs import ipfs_fetch
-from oracle.settings import NETWORK
+from oracle.settings import NETWORK, NETWORK_CONFIG
 
 from .types import ValidatorDepositData
 
@@ -29,6 +31,21 @@ async def select_validator(
         variables=dict(block_number=block_number),
     )
     operators = result["operators"]
+    result: Dict = await execute_sw_gql_query(
+        network=NETWORK,
+        query=LAST_VALIDATORS_QUERY,
+        variables=dict(block_number=block_number),
+    )
+
+    last_validators = result["validators"]
+    if last_validators:
+        last_operator_id = last_validators[0]["operator"]["id"]
+        index = _find_operator_index(operators, last_operator_id)
+        if index is not None and index != len(operators) - 1:
+            operators = operators[index + 1 :] + [operators[index]] + operators[:index]
+
+    _move_to_bottom(operators, NETWORK_CONFIG["ORACLE_STAKEWISE_OPERATOR"])
+
     for operator in operators:
         merkle_proofs = operator["depositDataMerkleProofs"]
         if not merkle_proofs:
@@ -90,3 +107,22 @@ async def get_validators_deposit_root(block_number: BlockNumber) -> HexStr:
         variables=dict(block_number=block_number),
     )
     return result["validatorRegistrations"][0]["validatorsDepositRoot"]
+
+
+def _move_to_bottom(operators, operator_id):
+    if operator_id == EMPTY_ADDR_HEX:
+        return
+
+    index = _find_operator_index(operators, operator_id)
+    if index is not None:
+        operators.append(operators.pop(index))
+
+
+def _find_operator_index(operators, operator_id):
+    index = None
+    operator_id = Web3.toChecksumAddress(operator_id)
+    for i, operator in enumerate(operators):
+        if Web3.toChecksumAddress(operator["id"]) == operator_id:
+            index = i
+            break
+    return index

oracle/oracle/validators/tests/test_controller.py

@@ -13,7 +13,7 @@
 block_number = faker.random_int(150000, 250000)
 
 
-def select_validator(operator, *args, **kwargs):
+def select_operators(operator, *args, **kwargs):
     return {
         "operators": [
             {
@@ -25,6 +25,10 @@ def select_validator(operator, *args, **kwargs):
     }
 
 
+def select_validators(*args, **kwargs):
+    return {"validators": []}
+
+
 def can_registor_validator(*args, **kwargs):
     return {"validatorRegistrations": []}
 
@@ -71,7 +75,8 @@ def get_validators_deposit_root(validatorsDepositRoot, *args, **kwargs):
 
 def sw_gql_query(operator):
     return [
-        select_validator(operator),
+        select_operators(operator),
+        select_validators(),
     ]